dietetics
US /ˌdaɪ.əˈtet̬.ɪks/
UK /ˌdaɪ.əˈtet̬.ɪks/
1.
the scientific study of diet and nutrition, especially in relation to health and disease
:
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She decided to pursue a career in dietetics after seeing the impact of nutrition on chronic diseases.
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The hospital department of dietetics provides personalized meal plans for patients.